Examples of Subquery

javax.persistence.criteria.Subquery
The Subquery interface defines functionality that is specific to subqueries. A subquery has an expression as its selection item. @param < T> the type of the selection item. @since Java Persistence 2.0
jcascalog.Subquery
org.apache.openjpa.kernel.exps.Subquery
Query value representing a subquery. @author Abe White @since 0.3.2
org.apache.tajo.master.querymaster.SubQuery
SubQuery plays a role in controlling an ExecutionBlock and is a finite state machine.
org.h2.expression.Subquery
A query returning a single value. Subqueries are used inside other statements.
org.lealone.expression.Subquery
A query returning a single value. Subqueries are used inside other statements.
org.modeshape.jcr.query.model.Subquery
A representation of a non-correlated subquery. This component uses composition to hold the various types of QueryCommand objects, rather than inheriting from StaticOperand and QueryCommand.

Examples of javax.persistence.criteria.Subquery

                    nestedrules);
                break;
              case SUBQUERY:
                SubQueryRule sqr = (SubQueryRule) rule;


                Subquery sq = cq.subquery(sqr.getSubQueryResultClass());
                Root<IN> sqFrom = sq.from(sqr.getSubQueryFromClass());


                Mapper<IN> sqMapper = db.getMapper(sqr.getSubQueryFromClass().getName());


                Predicate where = _createWhere(db, sqMapper, em, sqFrom, cq, cb, new int[2], joinHash,
                    (QueryRule[]) sqr.getValue());
                sq.select(sqFrom.get(sqr.getSubQueryAttributeJpa())).where(where);


                // the operator of subquery should be handled in
                // the right way such that no code duplication
                // should occure
                // for the moment only in will work (more to

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Examples of jcascalog.Subquery

import jcascalog.op.Multiply;




public class Examples {
  public static void twentyFiveYearOlds() {
    Api.execute(new StdoutTap(), new Subquery("?person").predicate(Playground.AGE, "?person", 25));
  }

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Examples of jcascalog.Subquery

  public static void twentyFiveYearOlds() {
    Api.execute(new StdoutTap(), new Subquery("?person").predicate(Playground.AGE, "?person", 25));
  }


  public static void lessThanThirtyYearsOld() {
    Api.execute(new StdoutTap(), new Subquery("?person")
        .predicate(Playground.AGE, "?person", "?age").predicate(new LT(), "?age", 30));
  }

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Examples of jcascalog.Subquery

    Api.execute(new StdoutTap(), new Subquery("?person")
        .predicate(Playground.AGE, "?person", "?age").predicate(new LT(), "?age", 30));
  }


  public static void lessThanThirtyYearsOldWithAge() {
    Api.execute(new StdoutTap(), new Subquery("?person", "?age")
        .predicate(Playground.AGE, "?person", "?age").predicate(new LT(), "?age", 30));
  }

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Examples of jcascalog.Subquery

    Api.execute(new StdoutTap(), new Subquery("?person", "?age")
        .predicate(Playground.AGE, "?person", "?age").predicate(new LT(), "?age", 30));
  }


  public static void doubleAges() {
    Api.execute(new StdoutTap(), new Subquery("?person", "?double-age")
        .predicate(Playground.AGE, "?person", "?age").predicate(new Multiply(), "?age", 2)
        .out("?double-age"));
  }

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Examples of jcascalog.Subquery

        .predicate(Playground.AGE, "?person", "?age").predicate(new Multiply(), "?age", 2)
        .out("?double-age"));
  }


  public static void distinctPeopleFromFollows() {
    Api.execute(new StdoutTap(), new Subquery("?person")
        .predicate(Playground.FOLLOWS, "?person", "_").predicate(Option.DISTINCT, true));
  }

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Examples of jcascalog.Subquery

    Api.execute(new StdoutTap(), new Subquery("?person")
        .predicate(Playground.FOLLOWS, "?person", "_").predicate(Option.DISTINCT, true));
  }


  public static void nonDistinctPeopleFromFollows() {
    Api.execute(new StdoutTap(), new Subquery("?person")
        .predicate(Playground.FOLLOWS, "?person", "_"));
  }

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Examples of jcascalog.Subquery

    Api.execute(new StdoutTap(), new Subquery("?person")
        .predicate(Playground.FOLLOWS, "?person", "_"));
  }


  public static void malePeopleEmilyFollows() {
    Api.execute(new StdoutTap(), new Subquery("?person")
        .predicate(Playground.FOLLOWS, "emily", "?person")
        .predicate(Playground.GENDER, "?person", "m"));
  }

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Examples of org.apache.openjpa.kernel.exps.Subquery


        // parse the subquery
        ParsedJPQL parsed = new ParsedJPQL(node.parser.jpql, node);


        ClassMetaData candidate = getCandidateMetaData(node);
        Subquery subq = factory.newSubquery(candidate, subclasses, alias);
        subq.setMetaData(candidate);


        contexts.push(new Context(parsed, subq));


        try {
            QueryExpressions subexp = getQueryExpressions();
            subq.setQueryExpressions(subexp);
            return subq;
        } finally {
            // remove the subquery parse context
            contexts.pop();
        }

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Examples of org.apache.openjpa.kernel.exps.Subquery

            candidate = fmd.getDefiningMetaData();


        setCandidate(candidate, alias);


        Context subContext = ctx();
        Subquery subquery = ctx().getSubquery();
        if (subquery == null){
            subquery = factory.newSubquery(candidate, true, alias);
            subContext.setSubquery(subquery);
        }
        else {
            subquery.setSubqAlias(alias);
        }


        Path subpath = factory.newPath(subquery);
        subpath.setSchemaAlias(path.getCorrelationVar());
        subpath.setMetaData(candidate);
        subquery.setMetaData(candidate);
        if (fmd.isElementCollection())
            exp = and(exp, bindVar);
        else
            exp = and(exp, factory.equal(path, subpath));

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